CN101813150B - Ceramic fiber reinforced ceramic matrix automotive brake friction material and preparation method thereof - Google Patents
Ceramic fiber reinforced ceramic matrix automotive brake friction material and preparation method thereof Download PDFInfo
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- CN101813150B CN101813150B CN2010101787961A CN201010178796A CN101813150B CN 101813150 B CN101813150 B CN 101813150B CN 2010101787961 A CN2010101787961 A CN 2010101787961A CN 201010178796 A CN201010178796 A CN 201010178796A CN 101813150 B CN101813150 B CN 101813150B
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Abstract
The invention discloses a ceramic fiber reinforced ceramic matrix automotive brake friction material and a preparation method thereof. According to a formula, the material comprises the following components by weight percent: 10-20 percent of modified sodium aluminosilicate, 5-10 percent of phenol-formaldehyde resin/nitrile rubber, 20 to 35 percent of alumina fibre, 1-2 percent of aramid fiber pulp, 6-16 percent of graphite, 3-8 percent of antimony sulphide, 2-4 percent of chromite, 2-5 percent of organic friction powder, 10-20 percent of barite, and 4-8 percent of composite filler.
Description
Technical field
The present invention relates to a kind of automotive brake friction material, particularly a kind of ceramic fiber reinforced ceramic matrix composite friction material that is used for brake system of car the invention still further relates to the preparation method of this composite friction material.
Background technique
Automobile brake sheet is the category-A key components and parts of brake system of car, and the quality of its performance is directly connected to the Security and the reliability of automobilism.The automobile brake sheet of main flow all adopts metal or few metal-resin base frication material in the market.With respect to sheet asbestos, steel fiber strengthens relatively environmental protection of resin-matrix friction material, has reduced the dust pollution of brake block, but its exist easy-to-rust, brake noise greatly, easily to hinder the antithesis dish, defective such as the ash that falls is serious.In addition, because the matrix adopting resin, have under the high temperature that heat fade is big, problem such as wear no resistance.Although and charcoal fiber, aramid fibre and ceramic whisker excellent performance cost an arm and a leg, be unsuitable in automobile friction, widely applying.Glass fibre is cheap, but to the production operation personnel stimulate big, add and too much can cause the brake block wearing and tearing to strengthen, and be easy to generate brake noise.Research and use are found, reinforcing phase as automobile brake sheet, ceramic alumina fiber have serviceability temperature height, corrosion-resistant, good, structural strength is higher, brake noise is low, braking is renderd a service, braked stationarity with the matrix compatibility by force, a series of fine qualities such as moderate cost, being a kind of comparatively ideal asbestos and steel fiber substitute, also is the preferential selection fiber of the middle and high shelves of preparation automobile brake sheet; Simultaneously, partly replace resinoid bond, can improve the heat fade performance of brake block significantly, reduce the high temperature wear amount with ceramic matrix.
Summary of the invention
First technical problem to be solved by this invention provides good, the low brake noise of a kind of long service life, heat resistance, fall ash less, ceramic fiber reinforced ceramic matrix automotive brake friction material that manufacturing property is good.
Second technical problem to be solved by this invention provides the preparation method of this ceramic fiber reinforced ceramic matrix automotive brake friction material.
In order to solve the problems of the technologies described above, ceramic fiber reinforced ceramic matrix automotive brake friction material provided by the invention, its material prescription is by weight percentage:
Modification sodium aluminosilicate 10～20 (wt.%), phenolic resin/nitrile butadiene rubber 5～10 (wt.%),
Alumina fibre 20～35 (wt.%), aramid fiber slurry pool 1～2 (wt.%),
Graphite 6～16 (wt.%), antimony sulphide 3～8 (wt.%),
Chromite 2～4 (wt.%), organic friction powder 2～5 (wt.%),
Barite 10～20 (wt.%), composite filling 4～8 (wt.%).
In order to solve above-mentioned second technical problem, the preparation method of this ceramic fiber reinforced ceramic matrix automotive brake friction material provided by the invention comprises the steps:
(1), batching: by each component materials of said ratio weighing;
(2), batch mixing: load weighted each material is dropped in the high speed mixer mixing time 4～5 minutes;
(3), moulding: take by weighing mixture by the brake block model, pour in the hot-pressing die, pressing pressure 200～300kgf/cm
2, 160～200 ℃ of hot pressing temperatures, exhaust 10～12 times, the dwell time decides according to the thickness of brake block, generally is 55～65s/mm;
(4), heat treatment: brake block was warmed up to 150～170 ℃ at 1.8～2.2 hours from room temperature, is incubated 3～5 hours, be warmed up to 200～220 ℃ at 0.8～1.2 hour again, be incubated 3～5 hours, cool to room temperature then with the furnace;
(5), the more above-mentioned product that makes is carried out grinding, chamfering by technical requirements, fluting carries out the high temperature ablation surface treatment then under 650～700 ℃ temperature, through spraying, seal mark, is processed into automobile brake sheet again.
Adopt ceramic fiber reinforced ceramic matrix automotive brake friction material of technique scheme and preparation method thereof, strengthen the resin base automobile brake sheet with respect to steel fiber, the ceramic fiber reinforced ceramic matrix automotive brake block all increases significantly at aspects such as velocity coherence, Braking efficiency, noise control, the ash control of falling, working lifes especially resistance to high temperature, and manufacture cost remains basically stable, and is the higher new automobile brake friction material of a kind of cost performance.
In sum, the ceramic fiber reinforced ceramic matrix automotive brake friction material that the present invention is a kind of long service life, manufacturing property is good, this preparation methods simple possible.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1:
The prescription of ceramic fiber reinforced ceramic matrix composite friction material provided by the invention:
Modification sodium aluminosilicate 20 (wt.%), phenolic resin/nitrile butadiene rubber 5 (wt.%),
Alumina fibre 35 (wt.%), aramid fiber slurry pool 2 (wt.%),
Graphite 6 (wt.%), antimony sulphide 7 (wt.%),
Chromite 2 (wt.%), organic friction powder 2 (wt.%),
Barite 14 (wt.%), composite filling 7 (wt.%).
In this formula system, vitrified bond mainly is to receive as high-temperature agglomerant with the manosil AS of modification, can significantly improve the heat resistance of material, reduce material wear extent at high temperature, and can make material form mesh structural porous structure, and increase the braking stationarity, reduce brake noise.For continuing to continue to use the moulding process and the manufacturing mechanism of resin base automobile brake sheet, add a spot of resin and rubber, drop into and cost of production with reduction equipment.Ceramic fiber has advantages such as serviceability temperature height, humidity resistance is good, wearing and tearing are little, and can play the effect that the brake travelling comfort is strengthened and improved to microcosmic.During graphite is used as, low temperature lubricant, antimony sulphide forms the antifriction film at material surface as the medium and high temperature oiling agent, can increase the braking stationarity, reduces wearing and tearing, increases the service life.Chromite, organic friction powder etc. can improve friction factor, increase Braking efficiency.Barite, composite filling etc. are except that playing the effect that reduces cost, and the porosity ratio of can also stablize friction factor, regulating material improves the brake travelling comfort.
The preparation process of ceramic fiber reinforced ceramic matrix automotive brake friction material comprises the steps:
(1), batching: by each component materials of said ratio weighing;
(2), batch mixing: load weighted each material is dropped in the high speed mixer mixing time 4 minutes;
(3), moulding: take by weighing mixture by the brake block model, pour in the hot-pressing die, pressing pressure 300kgf/cm
2, 160 ℃ of hot pressing temperatures, exhaust 12 times, the dwell time is 65s/mm;
(4), heat treatment: brake block was warmed up to 160 ℃ at 2 hours from room temperature, is incubated 4 hours, be warmed up to 210 ℃ at 1 hour again, be incubated 4 hours, cool to room temperature then with the furnace;
(5), the more above-mentioned product that makes is carried out grinding, chamfering by technical requirements, fluting carries out the high temperature ablation surface treatment then under 700 ℃ temperature, through spraying, seal mark, is processed into automobile brake sheet again.
The performance of ceramic fiber reinforced ceramic matrix automotive brake friction material
By GB5763-2008 the ceramic fiber reinforced ceramic matrix automotive brake block has been carried out fixed speed fricting test, test result sees Table 1.
Table 1 ceramic fiber reinforced ceramic matrix composite friction material constant speed test result
As can be seen from Table 1, the friction factor of ceramic fiber reinforced ceramic matrix automotive brake block changes less from 100 ℃ to 350, decay does not appear under the high temperature, wear rate is not subjected to Temperature Influence substantially, particularly under 350 ℃, ceramic matrix at high temperature forms the cubic network structure, with firm being bonded together of each constituent element, simultaneously, ceramic fiber has resistance to high temperature preferably, can play good humidification, the bulk strength of high temperature material does not reduce, and the wear rate of material remains unchanged substantially.After having tested, do not have oil film on the material surface, the brake pad surface is complete, flawless.
Embodiment 2:
The prescription of ceramic fiber reinforced ceramic matrix composite friction material provided by the invention:
Vitrified bond 10 (wt.%), phenolic resin/nitrile butadiene rubber 10 (wt.%),
Alumina fibre 20 (wt.%), aramid fiber slurry pool 2 (wt.%),
Graphite 16 (wt.%), antimony sulphide 8 (wt.%),
Chromite 4 (wt.%), organic friction powder 5 (wt.%),
Barite 17 (wt.%), composite filling 8 (wt.%).
The preparation process of ceramic fiber reinforced ceramic matrix automotive brake friction material comprises the steps:
(1), batching: by each component materials of said ratio weighing;
(2), batch mixing: load weighted each material is dropped in the high speed mixer mixing time 5 minutes;
(3), moulding: take by weighing mixture by the brake block model, pour in the hot-pressing die, pressing pressure 200kgf/cm
2, 200 ℃ of hot pressing temperatures, exhaust 10 times, the dwell time is 55s/mm;
(4), heat treatment: brake block was warmed up to 150 ℃ at 1.8 hours from room temperature, is incubated 3 hours, be warmed up to 210 ℃ at 0.8 hour again, be incubated 3 hours, cool to room temperature then with the furnace;
(5), the more above-mentioned product that makes is carried out grinding, chamfering by technical requirements, fluting carries out the high temperature ablation surface treatment then under 650 ℃ temperature, through spraying, seal mark, is processed into automobile brake sheet again.
Embodiment 3:
The prescription of ceramic fiber reinforced ceramic matrix composite friction material provided by the invention:
Modification sodium aluminosilicate 18 (wt.%), phenolic resin/nitrile butadiene rubber 8 (wt.%),
Alumina fibre 27 (wt.%), aramid fiber slurry pool 1 (wt.%),
Graphite 12 (wt.%), antimony sulphide 3 (wt.%),
Chromite 3 (wt.%), organic friction powder 4 (wt.%),
Barite 20 (wt.%), composite filling 4 (wt.%).
The preparation process of ceramic fiber reinforced ceramic matrix automotive brake friction material comprises the steps:
(1), batching: by each component materials of said ratio weighing;
(2), batch mixing: load weighted each material is dropped in the high speed mixer mixing time 5 minutes;
(3), moulding: take by weighing mixture by the brake block model, pour in the hot-pressing die, pressing pressure 260kgf/cm
2, 180 ℃ of hot pressing temperatures, exhaust 11 times, the dwell time is 60s/mm;
(4), heat treatment: brake block was warmed up to 170 ℃ at 2.2 hours from room temperature, is incubated 5 hours, be warmed up to 220 ℃ at 1.2 hours again, be incubated 5 hours, cool to room temperature then with the furnace;
(5), the more above-mentioned product that makes is carried out grinding, chamfering by technical requirements, fluting carries out the high temperature ablation surface treatment then under 680 ℃ temperature, through spraying, seal mark, is processed into automobile brake sheet again.
Embodiment 4:
The prescription of ceramic fiber reinforced ceramic matrix composite friction material provided by the invention:
Modification sodium aluminosilicate 16 (wt.%), phenolic resin/nitrile butadiene rubber 8 (wt.%),
Alumina fibre 32 (wt.%), aramid fiber slurry pool 2 (wt.%),
Graphite 14 (wt.%), antimony sulphide 6 (wt.%),
Chromite 4 (wt.%), organic friction powder 2 (wt.%),
Barite 10 (wt.%), composite filling 6 (wt.%).
The preparation process of ceramic fiber reinforced ceramic matrix automotive brake friction material comprises the steps:
(1), batching: by each component materials of said ratio weighing;
(2), batch mixing: load weighted each material is dropped in the high speed mixer mixing time 5 minutes;
(3), moulding: take by weighing mixture by the brake block model, pour in the hot-pressing die, pressing pressure 250kgf/cm
2, 180 ℃ of hot pressing temperatures, exhaust 10 times, the dwell time is 62s/mm;
(4), heat treatment: brake block was warmed up to 170 ℃ at 2.1 hours from room temperature, is incubated 5 hours, be warmed up to 220 ℃ at 0.9 hour again, be incubated 3.5 hours, cool to room temperature then with the furnace;
(5), the more above-mentioned product that makes is carried out grinding, chamfering by technical requirements, fluting carries out the high temperature ablation surface treatment then under 680 ℃ temperature, through spraying, seal mark, is processed into automobile brake sheet again.
Claims (2)
1. ceramic fiber reinforced ceramic matrix automotive brake friction material, it is characterized in that: its material prescription is by weight percentage:
Modification sodium aluminosilicate 10～20, phenolic resin/nitrile butadiene rubber 5～10,
Alumina fibre 20～35, aramid fiber slurry pool 1～2,
Graphite 6～16, antimony sulphide 3～8,
Chromite 2～4, organic friction powder 2～5,
Barite 10～20, composite filling 4～8.
2. prepare the method for the described ceramic fiber reinforced ceramic matrix automotive brake friction material of claim 1, it is characterized in that: comprise the steps:
(1), batching: by each component materials of said ratio weighing;
(2), batch mixing: load weighted each material is dropped in the high speed mixer mixing time 4～5 minutes;
(3), moulding: take by weighing mixture by the brake block model, pour in the hot-pressing die, pressing pressure 200～300kgf/cm
2, 160～200 ℃ of hot pressing temperatures, exhaust 10～12 times, the dwell time is 55～65s/mm;
(4), heat treatment: brake block was warmed up to 150～170 ℃ at 1.8～2.2 hours from room temperature, is incubated 3～5 hours, be warmed up to 200～220 ℃ at 0.8～1.2 hour again, be incubated 3～5 hours, cool to room temperature then with the furnace;
(5), the more above-mentioned product that makes is carried out grinding, chamfering by technical requirements, fluting carries out the high temperature ablation surface treatment then under 650～700 ℃ temperature, through spraying, seal mark, is processed into automobile brake sheet again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010101787961A CN101813150B (en) | 2010-05-20 | 2010-05-20 | Ceramic fiber reinforced ceramic matrix automotive brake friction material and preparation method thereof |
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| CN2010101787961A CN101813150B (en) | 2010-05-20 | 2010-05-20 | Ceramic fiber reinforced ceramic matrix automotive brake friction material and preparation method thereof |
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| CN101813150A CN101813150A (en) | 2010-08-25 |
| CN101813150B true CN101813150B (en) | 2011-10-05 |
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| CN102229493B (en) * | 2011-04-13 | 2013-07-10 | 中南大学 | Resin-free full ceramic based automobile brake pad and preparation method thereof |
| CN102816409B (en) * | 2012-08-24 | 2014-05-07 | 宁波市阳光汽车配件有限公司 | Friction material for clutch |
| CN102796270B (en) * | 2012-08-24 | 2015-03-11 | 朱育盼 | Preparation method of friction material for clutch |
| CN102797776B (en) * | 2012-08-31 | 2014-07-30 | 山东金山汽配有限公司 | Electronic ceramic brake block with modified phenolic resin-group |
| CN104817335A (en) * | 2015-03-31 | 2015-08-05 | 陈巧兰 | Manufacturing method of automobile brake disc |
| CN105864330A (en) * | 2016-05-12 | 2016-08-17 | 苏州爱盟机械有限公司 | Preparation method of high-performance bicycle brake pad |
| CN105927688B (en) * | 2016-07-06 | 2017-12-12 | 辽宁科技大学 | Graphitized fibre, carbon fiber, ceramic fibre brake disc and manufacturing process |
| CN107461435A (en) * | 2017-07-03 | 2017-12-12 | 马鞍山蓝科再制造技术有限公司 | A kind of braking sheet for automobile |
| CN107345128A (en) * | 2017-07-12 | 2017-11-14 | 苏州翠南电子科技有限公司 | A kind of strong wear-resisting composite ceramic-based friction material of stability |
| CN107588135A (en) * | 2017-10-27 | 2018-01-16 | 重庆市宏向汽配有限公司 | environment-friendly ceramic friction plate and preparation method |
| CN108626278A (en) * | 2018-04-25 | 2018-10-09 | 广东省材料与加工研究所 | A kind of alumina fibre enhancing ceramic-based friction material and its preparation method and application |
| CN108441168B (en) * | 2018-04-25 | 2020-09-18 | 广东省材料与加工研究所 | Zirconia fiber reinforced ceramic-based friction material and preparation method and application thereof |
| CN108386466B (en) * | 2018-04-25 | 2021-08-10 | 广东省材料与加工研究所 | Hybrid fiber reinforced ceramic-based friction material and preparation method and application thereof |
| CN108930735B (en) * | 2018-07-27 | 2020-01-07 | 杭州西湖摩擦材料有限公司 | Ceramic composite fiber brake pad |
| CN108930736B (en) * | 2018-07-27 | 2020-01-07 | 杭州西湖摩擦材料有限公司 | Preparation method of ceramic composite fiber brake pad |
| CN109723741A (en) * | 2019-01-23 | 2019-05-07 | 枣阳神虎摩擦材料有限责任公司 | A kind of Automobile ceramic brake pad and preparation method thereof |
| CN111998022A (en) * | 2020-08-26 | 2020-11-27 | 衡阳迈特制动系统有限公司 | High-temperature-resistant ceramic brake pad and production process thereof |
| CN112240364A (en) * | 2020-10-13 | 2021-01-19 | 沈阳梵一高铁摩擦材料技术研究院有限公司 | Friction material regulator for enhancing toughness and tensile strength |
| CN112483563B (en) * | 2020-11-25 | 2022-06-14 | 湖南世鑫新材料有限公司 | Copper-free resin-based friction material matched with carbon-ceramic brake disc and preparation method thereof |
| CN114151481B (en) * | 2021-12-02 | 2023-06-09 | 安徽飞鹰汽车零部件股份有限公司 | Large-plate special-shaped friction plate for engineering machinery, preparation method and mold |
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| US2877198A (en) * | 1956-07-30 | 1959-03-10 | Goodrich Co B F | Molding composition comprising fused aluminum silicate in fiber and pellet form and process of making same |
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2010
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Patent Citations (3)
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|---|---|---|---|---|
| US2877198A (en) * | 1956-07-30 | 1959-03-10 | Goodrich Co B F | Molding composition comprising fused aluminum silicate in fiber and pellet form and process of making same |
| CN101113204A (en) * | 2007-07-17 | 2008-01-30 | 李军魂 | Formula of ceramic radical friction material for automobile braking friction facing |
| CN101576136A (en) * | 2009-06-19 | 2009-11-11 | 中南大学 | Non-metal ceramic-based automobile brake sheet and preparing method thereof |
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| CN101813150A (en) | 2010-08-25 |
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